Automatic valve.



L. L. ROWE.

AUTOMATIG VALVE.

APPLIOATION FILED JUNE 16, so.

1,053,956. Patented Feb. 18,1913.

UNITED sra'r s rnnr OFFICE,

LEVI L. ROWE, OF BOSTON, MASSACHUSETTS.

AUTOMATIC VALVE.

To all whom it may concern Be it known that I, LEVI L. Rown, of Boston,in the County of Sufolk and State of Massachusetts, a citizen of theUnited States, have invented an Improved Automatic Valve, of which thefollowing is a specification.

My invention is shown embodied in a valve to be operated by a fioat, butcertain of its features are not necessarily limited to a valve of thatkind. Moreover as shown it is especially designed for use in chocolateand other like urns where the water is to be kept at a normal height butits principles may be involved in a valve for use in tanks of otherkinds where a valve of this class is desirable.

My invention relates especially to the valve proper and the means foradjusting it and for directing the flow of water into the tank-and itwill be understood by reference to the drawings which show oneembodiment thereof.

Figure 1 is a side elevation of a valve embodying my invention. Fig. 2is a plan. Fig. 3 is a section on line 3-3 of Fig. 2, and Fig. e is asection on line 4-& of Fig. 3.

A is the valve casing having a valve chamber B connected with a watersupply by the opening b threaded on its interior to receive thenecessary coupling. This valve chamber B is contracted at one end toform a valve seat c againstwhich the valve C seats and it continuesbeyond the valve seat as the passage b The valve C has a stem 0 whichprojects through the opening surrounded by the valve seat c and thepassage b and out beyond the end of the casing. Its diameter is somewhatless than that of the passage to allow a flow of water through thepassage when the valve is open. The body ot' the valve is polygonal incross section to allow the water to pass it, its angles havingsutticient reach to engage the walls of the valve chamher and keep thevalve properly centered. It has a stem 0 which projects rearwardly,being reduced in diameter and surrounded by a spring 0 which at one endbears against the valve body and at the other end engages the cap D,into a recess (Z in which both the stem 0 and spring (2 protrude, thecap thus forming an abutment for the spring.

The rear end ot the casing A is reduced in diameter as at A and threadedon its exterior so that the cap D may be screwed onto Specification ofLetters Patent.

Application filed June 16, 1910.

Patented Feb. 18, 1913.

Serial No. 567,180.

it as shown. A Washer (Z is used to pack the joint between the cap D andthe casing A.

E is a collar carrying lugs e between which the arm F is pivoted by thepin f which has a head at one end and a threaded section at its otherend to screw into a screw hole in one of the lugs. To the arm F thefioat rod f is attached. The collar E is adapted to slide on the part Awhich projects from the front of the casing A and is reduced in dianeteras shown. This collar has a hood 6 projecting upwardly and outwardlytheretrom to direct downward the water passing through the passage b Thearm F is provided with means such as a roll f which is located below thepivot f and in position to engage the end of the valve stem 0 thisarrangement being such that when the arm is brought into nearly verticalposition the valve C will be opened, but when the arm is in the positionshown in the drawing the valve will be closed. The arm also has in itslower end an opening f so that the float rod f may be attached to it.This arm has side walls f f* which cooperate with it to form athree-sided trough or conductor to directthe water delivered froni thepassage b downward into the receptacle or such part thereof as isintended to receive it. The upper end of the arm is provided with anoverhang f to coperate with the hood 6 for the purpose of directing thewater downward, these two parts preventing the escape of a stream ofwater upward when the arm has opened the Valve.

In order to adjust the position of the roll f with relation to the endof the valve stem and so adjust the opening point of the valve, Iprovide the casing A with a passage a in which there is a screw rod G.One end of the rod is threaded as at g and screws into a threadedopening e in the collar E. The other end is notched as at 9 to receive ascrew-driver. Between these two portions of the rod G i't is reduced insize to form shoulders 9 and a screw screwed into a suitable opening inthe casing projects into the cavity between the shoulders topreventendwise movenent ot' the rod G when it is turned. Thus theturning of the rod moves the collar E in or out as the case may be andso adjusts the position of the roll f that the valve will open when thefioat reaches any desired level.

The casting A has a shoulder Iz and a threa ded mit 71 projeeting beyondthe shoulder on which runs the clamp nut H. This nut is adapted to elampthe shoulder /L of the valve against a wall or other support in order tohold the valve in proper position.

The above describes the best embodiinent of my invention known to me,but it .may be otherwise embodied. It relates primarily to thesimplfication of the valve mechanism whereby a valve having a groundjoint may be used in place of a valve having a washer to impinge againstthe valve seat. The ol.)- jection to a washe' is that it soon wears outso that the valve leaks. Any leak in the present case may be rectifiedby removing the valve and regrinding it. Moreover it any substanee becaught between the valve and Valve seat so that the valve will not closetightly, th valve may be held open so that the water will rush by it, inwhich case the water will soon wash the foreign substance away. In thecase of a valve provided with a washer the foreign substanee is apt tobecome slightly embedded in the washer so that a new washer has to besubstituted for the old. My invention also relates to means foradjusting the relations of the ball cock and opening point ot the valveWithout taking the device apart, which means I believe to be radicallynew.

lVhat I claim as my invention is 1. In a valve structure of the kinddescribed, a valve chamber having an opening at one end, a valve seatsurrounding said opening, a valve ooperating with said seat to closesaid opening', said valve having a stem projecting through said opening,and adjustable means for controlling the movements of said valeveeomprising a sliding member, and a lever pivoted thereto, and meansadapted to direct the movements of said sliding member in a right linewhereby the t'ulcrum of said lover will always be maintained at the sameangle relative to the vertical.

2. In a valve structure of the kind described, a valve casing, a valveehamber located therein having a valve and a valve seat, said valvehaving a stem m'ojeeting through the opening in said valve seat, acollar mounted on said casing, an arm mounted on said collar to engagesaid valve stem and means for adjusting the position of said collar toposition said arm with relation to said stem, said means Comprising athreaded rod free to move in said casing and engaging a threaded hole insaid collar. and means for preventing the longitndinal movement ot' saidrod 'ith relation to said easing.

In a valve structure of the kind described, a valve chamber having valveand a valve seat located therein and means tor normally holding the`valve on its seat, said valve having a stem projecting forward throughthe valve opening and means for automatically opening said valve and:tor allowing it to close, said means compris ing a lever adapted toengage said valve stem, the axis of the pivot ot' said lever being` in aline at right angles to the axis of said valve stem, and means foradjustahly direeting the delivery of water through said valve openingcomprising walls carried hy said level' armend 'torming with said leverarm a channel. :for said water, and means :tor adjusting` the locationof said pivot Whereby the angle of said lever arm to the axis ot saidvalve opening will be adjusted.

LEVI L. RO'WE VVitnesses hi. E. FLAIIERTY, GEORGE LANGTON.

Gop'es of this patent may be obtained fo' five cents each, by addressingthe Commssoner of Patents, Washington, D. C.

